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Cybi Coastal Marathon 03/08/2024​​

Sign-up opens at 01/01/2024 00:01hrs


The Cybi Coastal Marathon won 1st place in the Best Marathons category of the Challenge Awards 2019 presented by Runners World and powered by Let’s Do This. The awards aims to recognise the best challenge events, organisation, charities, communities and individuals over the 2018/19 season.

The Route


The Cybi Coastal will be partially way-marked and will follow the paths, tracks, beaches and coastline of the Welsh national/Anglesey Coastal Path. The entire route passes through magnificent coastline scenery with fine views of wide bays, sandy beaches, dramatic cliffs, the famous South Stack lighthouse and the summit of Holyhead Mountain.

Participants will be chip timed by our timing partner and we will provide split times and finish times for all participants after the event.

The route can be viewed here A GPX version of the route can be downloaded here


Starting in the port town of Holyhead this race takes you on a variety of surfaces. Easy going paved paths, a small amount of road sections, sandy beaches, fields and single tracks. Tricky cliff tops and with a few good hill climbs and to top it all off a short sharp climb to the top of Holyhead Mountain and back down to sea level. Depending on the weather, this course can be very muddy and trail shoes are highly recommended. Minimum kit requirements may be implemented according to weather conditions.

Event Info

These are PROVISIONAL TIMES, you will receive your final information in the weeks before the event.

Saturday, 3 August, Registration opens 07:30hrs – 09:30hrs.​

The event HQ is at the Holyhead Lifeboat station where the marathon starts and finishes. Here you can register on the 2nd of August up to 19:00.

Race briefing at 09:35hrs.

The race starts at 10:00hrs.

The entrance fee is £33. This gets you entry to the full marathon, Timed course, Branded Cybi Coastal t-shirt, Finishers gift, 5 water stations along the course, partially way-marked course.

This is a cup less event so we recommend bringing your own.

Follow us on Twitter @CoastalCybi

See our Facebook Page for further info.

Contact Us

Full Race info

Full Race Instructions


Event Sponsorship

We would like to Introduce you to our two headline sponsors for this years Cybi Coastal Marathon.

Stuart Marine

Stuart Marine is a Marine Engineering Company serving both the leisure and commercial marine industries, based on the idyllic Isle of Anglesey.

Stuart is also a crew member at Holyhead RNLI station who along with Trearddur Bay Lifeboat station are our chosen charity.

For more info, go to Stuart Marine

Anglesey Vans

Anglesey Vans are a family run business based on Anglesey that pride themselves on the ability to share their love for the outdoors and prepare vans to meet everyone’s individual needs.
Anglesey Vans have the technical know-how and craftsmanship to deliver your ideas into reality.

For more info, go to Anglesey Vans

Without the support of local businesses such Stuart Marine and Anglesey Vans we wouldn’t be able to put on such an awesome event and provide donations to the local RNLI.

Our Chosen Charity

Cybi Coastal is run as a not for profit event with all finances raised after costs going to the RNLI Holyhead and Trearddur Bay lifeboat stations.
In our first  years of organising the Cybi Coastal Marathon we are proud to have been able to donate over £20,000.

Holyhead Lifeboat Facebook page

Trearddur Bay Lifeboat Facebook page

Cybi Coastal Marathon is a non-profit event and we cannot offer deferred places to other events. We allow transfers of places to other runners up to 4 weeks before the event. Email us for more details.

Previous Event Results